Necklace associated with the Boa Morte sisterhood of Cachoeira

A 42-inch long gold-colored chain link necklace with no clasp. All of the links are approximately the same size and are slightly concave in shape. Each link has a visible soldered seam. The links are arranged in an alternating pattern of patterned links and plain links. The patterned links are decorated with hammered dots. The patterns vary between randomly spaced large dots, symmetrical rows of dots, or dots fully covering the link. The necklace is lightweight, possibly brass.